I think the biggest challenge to starting, especially from absolute ground zero, is the financial requirement. Lets face it, this stuff ain't cheap, and if you've got to get everything.....bow, accessories, arrows, broadheads, camo, layering clothing, treestand.......boots......scent elimination..........to start with absolutely nothing and get what you need will be expensive. There is no way around that. There are ways to cut a corner here and there, but........If you start out w/ nothing, and need it all.....be prepared to spend some grip.

That's about all I can add to what's already been said.